Information below is translated by DeepL from this page:http://grassland.china.com.cn/2021-05/26/content_41574502.html .

Ovoo, directly translated as "heap", is an important part of nomadic culture, the essence and core of grassland culture. It is usually composed of stones, topped with a flagpole, auspicious colorful cloth and lucky flag, symbolizing people's piety. Sacrificing Ovoo is to sacrifice to heaven and earth, ancestor, water and fire and other gods through it, praying for good weather, prosperity and peace of people and animals, and so on.

Ovoo on the roadside, that is to pray for smooth roads; lake Ovoo, that is to pray for holy water long flow; pasture side Ovoo, that is to pray for lush water and grass ...... Anyone who passes by the Ovoo, you can express their own respect: increase a stone, sprinkle a little wine or milk, dedicate a khaddar or other items, and then clockwise around the Ovoo three times, the Prayer under your breath.

Sacrificing Ovoo contains deep cultural connotations, carries the Mongolian nation's philosophy of revering nature and harmonious coexistence of all things, and inspires people to love life, love their hometowns, and love nature.